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公开(公告)号：US11692272B2
公开(公告)日：2023-07-04
申请号：US17667029
申请日：2022-02-08
IPC分类号： C23C22/07 , H01F1/18 , C23C22/22 , C23C22/18 , H01F1/147 , C23C22/74 , C23C22/33 , C23C22/20 , C23C22/12
CPC分类号： C23C22/07 , C23C22/12 , C23C22/188 , C23C22/20 , C23C22/22 , C23C22/33 , C23C22/74 , H01F1/14783 , H01F1/18
摘要： Provided are coated metal, the metal having improved properties due to a novel coating, a coating-forming treatment solution for forming the novel coating, and a method for producing the coated metal that has the novel coating. The coated metal includes metal and a coating formed on the metal. The coating includes Si, P, and O, and at least one selected from the group consisting of Mg, Ca, Ba, Sr, Zn, Al, and Mn. The coating includes a compound having a NASICON-type crystal structure represented by the general formula MIMIV2(MVO4)3.
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公开(公告)号：US20220170131A1
公开(公告)日：2022-06-02
申请号：US17674264
申请日：2022-02-17
IPC分类号： C21D9/46 , C21D8/12 , C22C38/02 , C22C38/04 , C22C38/60 , C22C38/00 , H01F1/147 , C21D8/00 , C22C38/06 , C22C38/12 , C22C38/16 , C22C38/54
摘要： A method of manufacturing a grain oriented electrical steel sheet includes hot rolling a steel slab having a chemical composition including C: 0.002-0.10 mass %, Si: 2.5-5.0 mass %, Mn: 0.01-0.8 mass %, Al: 0.010-0.050 mass % and N: 0.003-0.020 mass % and the remainder being Fe and inevitable impurities to form a hot rolled sheet; subjecting the hot rolled sheet to one cold rolling or two or more cold rollings and interposing an intermediate annealing therebetween after hot band annealing or without hot band annealing to form a cold rolled sheet having a final thickness; subjecting the cold rolled sheet to a primary recrystallization annealing; applying an annealing separator to the surface of the steel sheet; and subjecting the sheet to a finish annealing and forming a tension coating.
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公开(公告)号：US20220162759A1
公开(公告)日：2022-05-26
申请号：US17667029
申请日：2022-02-08
IPC分类号： C23C22/07 , C23C22/22 , C23C22/18 , H01F1/147 , C23C22/74 , C23C22/33 , C23C22/20 , C23C22/12 , H01F1/18
摘要： Provided are coated metal, the metal having improved properties due to a novel coating, a coating-forming treatment solution for forming the novel coating, and a method for producing the coated metal that has the novel coating. The coated metal includes metal and a coating formed on the metal. The coating includes Si, P, and O, and at least one selected from the group consisting of Mg, Ca, Ba, Sr, Zn, Al, and Mn. The coating includes a compound having a NASICON-type crystal structure represented by the general formula MIMIV2(MVO4)3.
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公开(公告)号：US10697038B2
公开(公告)日：2020-06-30
申请号：US15514746
申请日：2015-09-11
发明人： Masayasu Nagoshi , Tomohiro Matsushima , Makoto Watanabe , Shigehiro Takajo , Toshito Takamiya , Masanori Uesaka , Takashi Terashima
IPC分类号： C21D9/46 , G01N21/62 , H01F1/18 , C21D8/12 , G01N23/225 , H01F1/16 , C22C38/02 , G01N23/2251 , H01F27/245 , H02K1/02 , H02K1/06
摘要： A grain oriented electrical steel sheet comprising a grain oriented electrical steel sheet having a surface and a forsterite film formed on the surface of the steel sheet, wherein a total area percentage of defective parts scattered on the forsterite film is less than 1.5% relative to a surface area of the forsterite film when viewed from above the surface, and methods for evaluating a grain oriented electrical steel sheet comprising a grain oriented electrical steel sheet having a surface and a forsterite film formed on the surface of the steel sheet.
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公开(公告)号：US10458021B2
公开(公告)日：2019-10-29
申请号：US16117369
申请日：2018-08-30
IPC分类号： C23C22/12 , C23C22/18 , C23C22/20 , C23C22/22 , C23C22/74 , C23C22/78 , C21D8/12 , C21D6/00 , C21D9/46 , H01F1/18
摘要： Provided is a treatment solution for chromium-free tension coating that can simultaneously achieve excellent moisture absorption resistance and a high iron loss reduction effect obtained by imparting sufficient tension, by using an inexpensive Ti source instead of expensive Ti chelate. The treatment solution for chromium-free tension coating contains: one or more of phosphates of Mg, Ca, Ba, Sr, Zn, Al, and Mn; colloidal silica in an amount of 50 parts by mass to 120 parts by mass per 100 parts by mass of the phosphate in terms of solid content of SiO2; Ti source in an amount of 30 parts by mass to 50 parts by mass per 100 parts by mass of the phosphate in terms of solid content of TiO2; and H3PO4, and the number of moles of metallic elements in the phosphate and of phosphorus in the treatment solution satisfy: 0.20≤([Mg]+[Ca]+[Ba]+[Sr]+[Zn]+[Mn]+1.5[Al])/[P]≤0.45 (1).
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公开(公告)号：US10087529B2
公开(公告)日：2018-10-02
申请号：US15038501
申请日：2015-01-14
IPC分类号： C23C22/12 , C23C22/18 , C23C22/20 , C23C22/22 , C23C22/74 , C23C22/78 , C21D8/12 , H01F1/18 , C21D6/00 , C21D9/46
摘要： Provided is a treatment solution for chromium-free tension coating that can simultaneously achieve excellent moisture absorption resistance and a high iron loss reduction effect obtained by imparting sufficient tension, by using an inexpensive Ti source instead of expensive Ti chelate. The treatment solution for chromium-free tension coating contains: one or more of phosphates of Mg, Ca, Ba, Sr, Zn, Al, and Mn; colloidal silica in an amount of 50 parts by mass to 120 parts by mass per 100 parts by mass of the phosphate in terms of solid content of SiO2; Ti source in an amount of 30 parts by mass to 50 parts by mass per 100 parts by mass of the phosphate in terms of solid content of TiO2; and H3PO4, and the number of moles of metallic elements in the phosphate and of phosphorus in the treatment solution satisfy: 0.20≤([Mg]+[Ca]+[Ba]+[Sr]+[Zn]+[Mn]+1.5[Al])/[P]≤0.45 (1).
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公开(公告)号：US12104257B2
公开(公告)日：2024-10-01
申请号：US17769061
申请日：2020-06-25
CPC分类号： C23C26/00 , B05D1/28 , B05D2202/15 , B05D2401/20
摘要： An electrical steel sheet with an insulating film, the steel sheet having an insulating film containing a crystalline fibrous material on a surface of the steel sheet, in which a ratio (LRD/LTD) of a length in a rolling direction (LRD) of the crystalline fibrous material in a cross section in the rolling direction of the insulating film to a length in a direction perpendicular to the rolling direction (LTD) of the crystalline fibrous material in a cross section in the direction perpendicular to the rolling direction of the insulating film is 1.5 or more and 50.0 or less.
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公开(公告)号：US12104216B2
公开(公告)日：2024-10-01
申请号：US17417375
申请日：2019-12-26
IPC分类号： C21D9/46 , C21D6/00 , C21D8/00 , C21D8/12 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , H01F1/147
CPC分类号： C21D9/46 , C21D6/005 , C21D6/008 , C21D8/005 , C21D8/1222 , C21D8/1233 , C21D8/1272 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , H01F1/147 , C22C2202/02
摘要： Provided is an annealing separator with which a grain-oriented electrical steel sheet having a forsterite film with excellent appearance uniformity and adhesion can be obtained. The annealing separator for grain-oriented electrical steel sheet comprises: magnesia that contains 0.05 mass % or more and 0.20 mass % or less of B and 0.01 mass % or more and 0.10 mass % or less of P, and titanium oxide in 1.0 part by mass or more and 10.0 parts by mass or less per 100 parts by mass of the magnesia where the titanium oxide contains one or more types of alkali metals in a total amount of 0.0050 mass % or more and 0.50 mass % or less, where an amount of P adsorbed on per 1 g of the titanium oxide is 1.5×10−4 g or more and 1.0×10−3 g or less.
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9.发明授权公开(公告)号：US12033791B2
公开(公告)日：2024-07-09
申请号：US17769049
申请日：2020-09-16
IPC分类号： B05D3/00 , B05D7/14 , B05D7/24 , C21D6/00 , C21D8/12 , C21D9/46 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/16 , C22C38/60 , C23C22/07 , H01F41/00
CPC分类号： H01F41/00 , C21D6/005 , C21D6/008 , C21D8/1222 , C21D8/1233 , C21D8/1261 , C21D8/1272 , C21D8/1283 , C21D9/46 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/16 , C22C38/60 , C23C22/07 , C22C2202/02
摘要： A method for forming a film on a surface of a steel sheet includes applying a treatment solution for forming a film containing a fibrous material to the surface of the steel sheet by using a coater under a condition in which a difference between a speed of the steel sheet and a speed of an applicator of the coater is 1.0 m/min or more, inclining the surface of the steel sheet, to which the treatment solution for forming a film has been applied, at an angle of 10° or more with respect to a horizontal plane until drying is started, and thereafter drying the steel sheet.
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公开(公告)号：US11293070B2
公开(公告)日：2022-04-05
申请号：US16483829
申请日：2018-01-17
摘要： In a grain-oriented electrical steel sheet, comprising magnetic domains refined by a plurality of linear grooves in a surface of a steel sheet, each of the linear grooves is provided on its floor with a plurality of recessed parts aligned in a direction in which the linear groove extends, at a predetermined interval p (μm), and the recessed part is made to have a predetermined depth d (μm). In this way, it is possible to provide a grain-oriented electrical steel sheet having further improved iron loss properties while having reduced magnetic flux density reduction.
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